CN109838507A - The single denominator subtractive retarder of double modulus - Google Patents
The single denominator subtractive retarder of double modulus Download PDFInfo
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- CN109838507A CN109838507A CN201711222562.0A CN201711222562A CN109838507A CN 109838507 A CN109838507 A CN 109838507A CN 201711222562 A CN201711222562 A CN 201711222562A CN 109838507 A CN109838507 A CN 109838507A
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- gear
- planetary gear
- line speed
- modified line
- planet row
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Abstract
The single denominator subtractive retarder of double modulus, it is made of single modified line speed planet row, its structure type is one of four kinds of structure type, modified line speed planet row by two centre wheels and one to two layers planetary gear set at, wherein a certain layer planetary gear is modified line speed planetary gear, the modified line speed planetary gear is located on planet carrier, and the left and right sides gear of modified line speed planetary gear can have two different diameters, modulus, the number of teeth, and two different moduluses can be respectively adopted in each element gear being engaged with respectively.The present invention can improve planet row structure and performance and then expand the performance for improving retarder.
Description
Technical field
The present invention relates to a kind of planet row gear structure gearings, specially with the single modified line speed planet of double modulus
The denominator subtractive retarder of row.
Background technique
In order to change torque and the revolving speed of dynamical system, many dynamic power machines are all configured with mechanical reducer.It is many to slow down
Device is planet row gear structure, and part is single planet row structure.The modified line speed planet row gearing of recent invention can
Using as retarder.The modulus of each element gear is all identical in single planet row.If using two different moduluses, so that it may
Improve the structure and performance of planet row, so that it may expand the performance for improving the gearings such as retarder, here it is our purposes.
Summary of the invention
In order to achieve the purpose that improve planet row structure and performance and then expand the performance of improvement retarder, the present invention is proposed
The method that two kinds of different modules are respectively set in two groups of teeth wheel in modified line speed planet row, provided with two kinds of different modules
Modified line speed planet row is known as double modulus planet row, and the denominator subtractive retarder that single double modulus planet row is constituted is double modulus
Single denominator subtractive retarder.
Planet row is made of two centre wheels (sun gear or ring gear) and three kinds of components of planet carrier with planetary gear, and three kinds
The meshing relation of component determines planet row type.Existing planet row can be divided into list by the Dan Yushuan of planet carrier upper planet wheel number of levels
Layer star planet row, the double-deck star planet row.Planet row type is different, and the characteristics of motion is different, it then follows the equation of motion it is different.It is existing
The parameter about planet row of the research planet row characteristics of motion be known as characterisitic parameter, the equation of research planet row movement is known as transporting
Dynamic characteristic equation.It is defined as follows: setting Zt as centre wheel (sun gear) number of teeth, Zq is another centre wheel (ring gear) tooth
Number, Nt are sun wheel speed, and Nq is ring gear revolving speed, and Nj is planet carrier revolving speed, defined property parameter a=Zq/Zt, single layer star row
The kinetic characteristic equation of star row are as follows: Nt+a*Nq- (1+a) * Nj=0, the kinetic characteristic equation of the double-deck star planet row are as follows: Nt-a*
Nq- (1-a) * Nj=0.
The linear velocity that common planetary arranges each element gear reference circle is identical.Modified line speed planet row by two centre wheels with
One to two layers planetary gear set is at wherein a certain layer planetary gear is modified line speed planetary gear.I.e. this layer of planetary gear of modified line speed planetary gear
Each planetary gear divides equally the gear that two sets diameters are arranged in left and right sides, modulus, the number of teeth can be different, distinguishes directly or indirectly with two
A centre wheel engagement.Two sleeve gears are located on same planetary gear, and revolving speed (angular speed) is equal, and the line of two sleeve gear reference circles
Speed can be unequal, and here it is the planetary gears of " modified line speed ".The centre wheel is i.e. using planet row axle center as the sun of rotary shaft
Wheel or ring gear.Planet row with modified line speed planetary gear is exactly modified line speed planet row, and modified line speed planet row has seven kinds of structures
Form, wherein the equation of motion obey the double-deck star planet row equation of motion there are four types of structure types.The first, modified line speed planetary gear
It is the outer layer planetary gear in the double-deck star planetary gear, left side set of gears is internally engaged with internal layer planetary gear, is equivalent to and is internally passed through
Internal layer planetary gear is engaged with left side sun gear indirectly, is directly engaged with right side ring gear outside the another set of gear mesh in right side, this knot
Configuration formula is known as modified line speed planet row structure form four, referring to Fig. 1.Second, modified line speed planetary gear is in the double-deck star planet opinion
Internal layer planetary gear, left side set of gears internally directly engages with left side sun gear, and the another set of gear mesh in right side is outer and outer layer row
Star-wheel engagement, is equivalent to and is externally engaged indirectly with right side ring gear by outer layer planetary gear, and this structure type is known as modified line speed
Planet row structure form five, referring to fig. 2.The third, modified line speed planetary gear is single layer planetary gear, and left side set of gears is internally direct
It engages, is directly engaged with right side sun gear in the another set of gear mesh in right side, this structure type is known as modified line with left side sun gear
Fast planet row structure form six, referring to Fig. 3.4th kind, modified line speed planetary gear is single layer planetary gear, and left side set of gears is externally straight
It connects and is engaged with left side ring gear, directly engaged with right side ring gear outside the another set of gear mesh in right side, this structure type is known as becoming
Linear speed planet row structure form seven, referring to fig. 4.The modified line speed planet row of these four structure types is that double modulus of the present invention is single
Four kinds of structure types of denominator subtractive retarder.If Left-side center wheel (the sun gear or ring gear) number of teeth is Zz, right center
Wheel (the sun gear or ring gear) number of teeth is Zy, and the left side set of gears number of teeth of modified line speed planetary gear is Xz, another sleeve gear in right side
The number of teeth is Xy, then the characterisitic parameter for defining modified line speed planet row of the present invention is a, a=(Zy*Xz)/(Zz*Xy), modified line speed planet
Row's structure type four, structure type five, structure type six and structure type seven follow kinetic characteristic equation Nz-a*Ny- (1-a) *
Nj=0 is analogous to general dual layer star planet row.The characterisitic parameter of modified line speed planet row can be in close proximity to 1.0, Nj such
The relatively other coefficient of coefficient (1-a) it is very small, the denominator of transmission ratio formula 1/ (1-a) or a/ (1-a) can have subtractive,
Transmission ratio can be very big, can form the retarder of large transmission ratio.
The left side set of gears of modified line speed planetary gear is directly or indirectly engaged with a centre wheel in modified line speed planet row, right
Another sleeve gear in side is directly or indirectly engaged with another centre wheel.The present invention proposes, in the left side gear of modified line speed planetary gear
From in right side gear can two kinds use different modules, that is, use two different off-gauge modulus (transverse tooth thickness+tooth socket
It is wide).In modified line speed planet row, the constant distance in the modified line speed planetary gear center of circle to planet row axle center, according to meshing relation and respectively
The component number of teeth, is first arranged the reference diameter and modulus of side modified line speed planetary gear gear, then other side modified line speed planet is arranged
The reference diameter and modulus of wheel, due in modified line speed planet row there are different two groups of teeth wheel meshing relations, two groups of teeth wheel
Two kinds of moduluses can be unequal.Need to be arranged each number of gear teeth according to retarder transmission ratio, according to the modified line speed planetary gear center of circle
With each gear compound graduation circular diameter of setting at a distance from planet row axle center, the two different moduluses of each gear are set.Such modified line speed
Planet row is double modulus planet row.The retarder of formation is the single denominator subtractive retarder of double modulus.
Setting double modulus is conducive to improve planet row structure and performance, and then can expand the performance for improving retarder.It is single
The characterisitic parameter of the modified line speed planet row of the structure type six and structure type seven of modulus can be close in 1.0, and deviation is greater than 1/
75, that is to say, that the transmission ratio 1/ (1-a) of its single denominator subtractive retarder formed is less than 75.After double modulus, knot
The characterisitic parameter of the modified line speed planet row of configuration formula six and structure type seven can be closer to 1.0, and deviation can be minimum about
1/22201, that is, its single denominator subtractive reducer structure form of double modulus of the present invention the third transmission ratio for being formed
1/ (1-a) can be close in 22201, and the transmission ratio that the 4th kind of structure type can also be very big.Structure type four and structure type
After five modified line speed planet row uses double modulus, planet row structure also makes moderate progress with performance, the double modulus of the present invention of formation
Single denominator subtractive reducer structure form the first with easily reach required transmission ratio for second, transmission ratio can also be with
Greatly.
Compared with " two rows of denominator subtractive retarders " or " two rows of stars connect denominator subtractive retarder ", bimodulus of the present invention
The single denominator subtractive reducer structures of number are simpler, and mechanical loss halves substantially when transmission, and component is reduced, weight reduction,
Handling ease；And since in four kinds of structure types of the invention, ring gear does not limit the radially installed of planetary gear with sun gear,
Convenient for using gear with positive correction form, the transmission efficiency of gear structure can be improved.With " the modified line speed row of the single denominator of unimodular number
Star arrange gearing " formed retarder compare, the single denominator subtractive retarder of double modulus of the present invention is more readily formed greatly
Transmission ratio, be easy using the denominator subtractive of transmission ratio formula to reach required transmission by adjusting planet row characterisitic parameter
Than.
The present invention proposes, as long as using four kinds of structures of modified line speed planet row of the present invention in planet row gearing
One of form uses two different moduluses in modified line speed planet row, just belongs to the single denominator subtractive of double modulus and slows down
Device should all fall into protection scope of the present invention.
The single denominator subtractive retarder of double modulus of the present invention is beneficial in that, proposes the four of retarder of the present invention
Kind structure type, proposes the method that two different modules can be set in each component of single planet row.The present invention
The modified line speed planet row expands the performance of improvement retarder by improving planet row structure and performance.
Detailed description of the invention
Fig. 1 is single the first schematic diagram of denominator subtractive reducer structure form of double modulus of the present invention.
Fig. 2 is single second of the schematic diagram of denominator subtractive reducer structure form of double modulus of the present invention.
Fig. 3 is single the third schematic diagram of denominator subtractive reducer structure form of double modulus of the present invention, and the present invention
Embodiment 1.Input and output are illustrated with arrow, and locking connection signal is ground connection mark.
Fig. 4 is 4th kind of schematic diagram of the single denominator subtractive reducer structure form of double modulus of the present invention.
Planet row is pressed industrial practice and is indicated with half range planet row gear structure in each figure, each component of planet row in each figure
Schematic construction relationship, does not reflect full-size(d).
Specific embodiment
Embodiment 1: the single denominator subtractive reducer structure form of double modulus of the present invention the third, be arranged it is each input it is defeated
Locking connection is shown in Figure 3 out.Output connecting object is Left-side center wheel diameter Dzz, and locking connecting object is right center
Wheel diameter Dzy, input connecting object are planet carrier, and wherein modified line speed planetary gear left side gear diameter is Dxz, left side gear modulus
Mz, right side gear diameter are Dxy, right side gear modulus my.The modified line speed planet row characterisitic parameter is a=(Zy*Xz)/(Zz*
Xy), when the value difference of each number of gear teeth Zy, Zz, Xz, Xy, the value of characterisitic parameter a is different, and relationship is not between modulus mz, my
Together.It needs to be arranged each number of gear teeth according to retarder transmission ratio, transmission ratio 1/ (1-a) is made to be equal to required gear ratio value.Root
Each gear compound graduation circular diameter is set according to the modified line speed planetary gear center of circle at a distance from planet row axle center, make Left-side center wheel diameter and is become
The sum of linear speed planetary gear left side gear diameter is equal to the sum of right center wheel diameter and modified line speed planetary gear right side gear diameter,
Dxz+Dzz=Dxy+Dzy.Each module is set, intermeshing Left-side center wheel gear modulus and modified line speed planetary gear are made
Left side gear modulus is equal, mz=pi * Dxz/Xz=pi * Dzz/Zz；Make intermeshing right center wheel gear
Modulus and modified line speed planetary gear right side gear modulus establish another relation of equality, my=pi * Dxy/Xy=pi *
Dzy/Zy。
Relationship citing see the table below between the value of each transmission ratio 1/ (1-a), corresponding each component number of teeth and double modulus:
| Transmission ratio 1/ (1-a) | Each number of gear teeth Zy, Zz, Xy, Xz | Relationship between double modulus |
| 22201 | 300、298、298、296 | (594/296) mz=(598/298) my |
| 288.46 | 202、200、150、148 | (348/148) mz=(352/150) my |
| 1600 | 82、80、80、78 | (158/78) mz=(162/80) my |
| 18.18 | 42、40、20、18 | (58/18) mz=(62/20) my |
| 100 | 22、20、20、18 | (38/18) mz=(42/20) my |
By example each in table as it can be seen that with the method that double modulus is arranged, retarder of the present invention, which can pass through, adjusts each gear
The number of teeth constitutes various transmission ratios.Under conditions of each element gear number of teeth is not less than 18 no more than 300, retarder of the present invention
The third gear range of structure type can be more than ten, tens, until 22,201.
When the retarder of the present embodiment 1 is manufactured in design, the mechanical system of speed changer is designed according to the above method, is then pressed
Carry out the technological designs such as material, shape, machinery, processing according to actual needs, carries out lubricating system, installation support and protection system
Design, then can manufacture.
The various embodiments described above are only some embodiments of the invention, and the single denominator subtractive retarder of double modulus can
To be retarder, speed increaser, it can be the part of gearing, protection scope of the present invention should all be fallen into.
Claims (2)
1. the single denominator subtractive retarder of double modulus, is made of single modified line speed planet row, it is characterised in that: modified line speed planet
Row is by two centre wheels and one to two layers planetary gear set at wherein a certain layer planetary gear is modified line speed planetary gear, the modified line is fast
Planetary gear is located on planet carrier, and the left and right sides gear of modified line speed planetary gear can have two different diameters, modulus, tooth
Two different moduluses can be respectively adopted in number, each element gear being engaged with respectively.
2. the single denominator subtractive retarder of double modulus as described in claim 1, it is further characterized in that there are four types of structures for its tool
Form, it may be assumed that structure type the first: the rear side set of gears of modified line speed planetary gear is internally engaged with internal layer planetary gear, is equivalent to
It is internally engaged with rear side sun gear by internal layer planetary gear, is directly nibbled with front side ring gear outside the another set of gear mesh in front side indirectly
It closes, second of structure type: the rear side set of gears of modified line speed planetary gear is internally directly engaged with rear side sun gear, and front side is another
Sleeve gear is externally engaged with outer layer planetary gear, is equivalent to and is externally engaged indirectly with front side ring gear by outer layer planetary gear, structure
Form the third: the rear side set of gears of modified line speed planetary gear is internally directly engaged with rear side sun gear, another sleeve gear in front side
Internally directly engaged with front side sun gear, the 4th kind of structure type: the rear side set of gears of modified line speed planetary gear externally directly with
The engagement of rear side ring gear, the another set of gear mesh in front side are directly engaged with front side ring gear outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711222562.0A CN109838507A (en) | 2017-11-29 | 2017-11-29 | The single denominator subtractive retarder of double modulus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711222562.0A CN109838507A (en) | 2017-11-29 | 2017-11-29 | The single denominator subtractive retarder of double modulus |
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| Publication Number | Publication Date |
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| CN109838507A true CN109838507A (en) | 2019-06-04 |
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| CN201711222562.0A Pending CN109838507A (en) | 2017-11-29 | 2017-11-29 | The single denominator subtractive retarder of double modulus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577841A (en) * | 2020-05-19 | 2020-08-25 | 于永利 | External-engagement planetary gear type output power amplifier |
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2017
- 2017-11-29 CN CN201711222562.0A patent/CN109838507A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577841A (en) * | 2020-05-19 | 2020-08-25 | 于永利 | External-engagement planetary gear type output power amplifier |
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Application publication date: 20190604 |